Methyl Salicylate: Uses, Structure, Side Effects and Sample Questions

Methyl salicylate, also known as wintergreen oil, is an organic ester generated naturally by many plants, especially wintergreens. It is a member of the aspirin family and is sweet-smelling in nature. In 1843, the chemical was taken and isolated from the plant Gaultheria procumbens. It may be synthesized and utilized as a fragrance, as well as in foods, drinks, and liniments. It produces a colorless to yellow or reddish liquid with a distinct wintergreen odor and flavor. Methyl salicylate is used as a rubefacient and analgesic in deep heating liniments for acute joint and muscle pain. Methyl salicylate is the methyl ester of salicylic acid and is a benzoate ester. It functions as a flavoring ingredient, a metabolite, and an insect attractant, among other things. It's a benzoate ester that belongs to the salicylate family. In this article, we will have a look at the uses of methyl salicylate, its structure, and various side effects.

Keyterms: Methyl Salicylate, Organic ester, Plants, Methyl ester, Salicylic acid, Benzoate ester, Ester, Benzene, Aspirin

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What is Methyl Salicylate?

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Methyl Salicylate is a widely used counterirritant. Several plant species, most notably wintergreen, produce it naturally. Its IUPAC name is Alkyl group 2-hydroxybenzoate. Methyl Salicylate was initially isolated from the groundberry plant by a French scientist in 1843.

Wintergreen oil is the common name for methyl salicylate. It is a sweet-smelling member of the aspirin family that is one of the most widely used anti-irritants. It is used as a flavoring agent in sweets, cough drops, and chewing gum, despite the fact that it is extremely hazardous.

Methyl Salicylate or Wintergreen

It also treats mild muscle/joint aches and pains (such as arthritis, backache, sprains). Menthol and methyl salicylate function by cooling and then warming the skin. These sensations on the skin take your attention away from the aches and pains in your muscles and joints.

If this drug is ingested, it may cause injury. If you ingest methyl salicylate or menthol cream or ointment, contact a doctor urgently.

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Structure of Methyl Salicylate

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Methyl Salicylate Structure

The structure of methyl salicylate is very identical to the structure of salicylic acid. Methyl Salicylate is an ester of salicylic acid. Here, the carboxylate moiety that is acidic in nature is methylated completely without altering the phenolic hydroxyl.

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Properties of Methyl Salicylate

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• The formula for methyl salicylate is C₈H₈O₃. 
• It's an alkyl group organic compound of hydroxy acid that's in the form of a salt. 
• Methyl Salicylate has a mass of approximately 152.15 Da. 
• It is a chromatic or carmine liquid that is colorless. 
• This is extremely dangerous in nature, yet it's widely used in the production of flavoring compounds in candy, chewing gum, and cough syrups at extremely low concentrations. 
• It has therapeutic qualities. 
• It serves as a flavoring ingredient as well as an insect attractant.
• Methyl salicylate has a boiling temperature of 220 degrees Celsius and a melting point of -9 degrees Celsius.
• It has a minty or refreshing scent.
• At 25 degrees Celsius, the vapor pressure of methyl salicylate is 0.0343mm Hg.
• If there is an aqueous base present, the chemical will undergo hydrolysis. Methanol and salicylic acid are produced during the hydrolysis of methyl salicylate.

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Uses of Methyl Salicylate

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The uses of methyl salicylate are varied as it is used in various fields. Some of the uses of methyl salicylate are as follows:

1. Cosmetic/Personal Care Products

• Methyl salicylate is used as a rubefacient in sport massage products and as a warming agent in cosmetics. 
• The methyl salicylate content in the final goods might range from 3 to 9 percent. 
• It's utilized as a modifier in blossom fragrances and as a mild antibacterial in oral hygiene products. 
• At doses ranging from 0.0001 percent to 0.6 percent, methyl salicylate or wintergreen oil is used as a denaturant and flavoring agent. 
• In toothpaste, up to 1%, methyl salicylate is used as a flavoring ingredient.

The primary goal of sports cream/massage goods is to relieve minor aches and pains that might occur during sports and physical activities. They do, in fact, relieve muscular pains and are used as an anti-inflammatory, but this would render these goods subject to the rules governing therapeutic products.

Wintergreen oil, which contains up to 98 percent methyl salicylate, is frequently used in aromatherapy salons. Wintergreen essential oil is a kind of essential oil. Essential oils are combined with various "base" oils at quantities ranging from 0.5 to 5%, according to their working codex.

2. In the field of food

Chewing gum, baked products, syrups, candies, non-alcoholic beverages, and ice cream all include methyl salicylate as a flavoring ingredient. The chemical may be found in a variety of plants, vegetables, and edible berries.

Methyl salicylate as a flavoring agent in chewing gum

3. In the medical field

• Methyl salicylate has anti-inflammatory effects and is still used in liniments and ointments for joint and muscular problems as well as rheumatic disorders, but no other plant extract containing salicylate is accessible in western pharmacies. 
• 12 distinct topical methyl salicylate-containing medicines are there for muscular pain relief, ranging from 3 to 18 percent methyl salicylate.

Methyl salicylate has the same effects as salicylates, however, it is rarely ingested by mouth. It is easily absorbed via the skin and used to relieve pain in liniments and ointments.

Methyl Salicylate used in pain-relieving cream

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Side Effect of Methyl Salicylate

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Methyl Salicylate should be kept out of the reach of children under the age of 18. It's also worth emphasizing that the substance should not be used without first consulting a doctor. Failure to do so might lead to a variety of e adverse effects. The following are some of the most serious adverse effects of methyl salicylate:

• Itching, irritation, and redness at the application site are possible side effects. If any of these issues worsen or continue for an extended period of time, see a pharmacist or doctor at once.
• Swelling or blistering at the application site, unexpected or increasing discomfort, vomiting, and nausea, or ringing in the ears are all symptoms that need to be treated very once. If you have any of these issues, you must stop taking the product.

• Although serious adverse reactions to methyl salicylate are uncommon, any symptoms such as swelling, itching, difficulty breathing, or severe dizziness should be reported to a doctor as soon as possible.

Other negative consequences are possible. As a result, seeking the advice of a healthcare expert is always a good idea. Remember that if your doctor has prescribed methyl salicylate, he or she has already weighed the benefits against the dangers of side effects. As a result, it's likely that people will not have any methyl salicylate side effects.

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Things to Remember

• Methyl Salicylate is a widely used counterirritant.
• Menthol and methyl salicylate function by cooling and then warming the skin. These sensations on the skin take your attention away from the aches and pains in your muscles and joints.
• Without the guidance of a doctor, this product should not be used by minors under the age of 18. 
• It is a member of the aspirin family and is sweet-smelling in nature.
• Methyl Salicylate is extremely dangerous in nature, yet it's widely used in the production of flavoring compounds in candy, chewing gum, and cough syrups at extremely low concentrations. 
• Itching, irritation, and redness at the application site are possible side effects of methyl salicylate.

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